The great value of ENCO's work originates from the adoption of outstanding quality tools and the ability, developed in over 20 years on the field, to always pinpoint the perfect solutions, taking into consideration networks and structures sizes, waters categories and specific geographical configurations. At the same time ENCO always puts extra care  in choosing materials and collectors, in picking construction criteria and purification treatment methods. Faithful to its philosophy of favouring the application of free and widely used calculation codes, ENCO's preferred software for sewer dimensioning and evaluation of pollution loads is EPA Storm Water Management System (implemented by the United States Environmental Protection Agency).Calculations and simulations of waste water purification processes are performed by Anova's software SWater Professional Main software: EPA Storm Water management System; SWater Professional